answer.code: In function ‘mint invert(mint)’:
answer.code:50:17: error: ‘assert’ was not declared in this scope
   50 |                 assert(g == 1); return mint(x);
      |                 ^~~~~~
answer.code:5:1: note: ‘assert’ is defined in header ‘<cassert>’; did you forget to ‘#include <cassert>’?
    4 | #include <iostream>
  +++ |+#include <cassert>
    5 | #include <string>
answer.code: In function ‘void* operator new(size_t)’:
answer.code:76:9: error: ‘assert’ was not declared in this scope
   76 |         assert(s < i);
      |         ^~~~~~
answer.code:76:9: note: ‘assert’ is defined in header ‘<cassert>’; did you forget to ‘#include <cassert>’?
answer.code: In member function ‘void Node::set(int, int)’:
answer.code:133:25: error: ‘assert’ was not declared in this scope
  133 |                         assert(0 <= ntop && ntop <= num);
      |                         ^~~~~~
answer.code:133:25: note: ‘assert’ is defined in header ‘<cassert>’; did you forget to ‘#include <cassert>’?
answer.code: In member function ‘int HLD<VALS_EDGES>::process(int, int, B)’:
answer.code:196:17: error: there are no arguments to ‘assert’ that depend on a template parameter, so a declaration of ‘assert’ must be available [-fpermissive]
  196 |                 assert(depth[v] >= depth[u]);
      |                 ^~~~~~
answer.code:196:17: note: (if you use ‘-fpermissive’, G++ will accept your code, but allowing the use of an undeclared name is deprecated)
answer.code: In lambda function:
answer.code:204:57: error: there are no arguments to ‘assert’ that depend on a template parameter, so a declaration of ‘assert’ must be available [-fpermissive]
  204 |                 return process(u, u, [&](int l, int r) {assert(l + 1 == r); tree->set(l, val); });
      |                                                         ^~~~~~
answer.code: In instantiation of ‘int HLD<VALS_EDGES>::modifyNode(int, int) [with bool VALS_EDGES = false]’:
answer.code:248:17:   required from here
answer.code:204:63: error: ‘assert’ was not declared in this scope
  204 |                 return process(u, u, [&](int l, int r) {assert(l + 1 == r); tree->set(l, val); });
      |                                                         ~~~~~~^~~~~~~~~~~~
answer.code:204:63: note: ‘assert’ is defined in header ‘<cassert>’; did you forget to ‘#include <cassert>’?
answer.code: In instantiation of ‘int HLD<VALS_EDGES>::process(int, int, B) [with B = HLD<false>::modifyPath(int, int, int)::<lambda(int, int)>; bool VALS_EDGES = false]’:
answer.code:200:20:   required from ‘int HLD<VALS_EDGES>::modifyPath(int, int, int) [with bool VALS_EDGES = false]’
answer.code:247:27:   required from here
answer.code:196:23: error: ‘assert’ was not declared in this scope
  196 |                 assert(depth[v] >= depth[u]);
      |                 ~~~~~~^~~~~~~~~~~~~~~~~~~~~~
answer.code:196:23: note: ‘assert’ is defined in header ‘<cassert>’; did you forget to ‘#include <cassert>’?
answer.code: In function ‘int main()’:
answer.code:229:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  229 |         scanf("%d", &N);
      |         ~~~~~^~~~~~~~~~
answer.code:232:25: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  232 |         {int u, v; scanf("%d%d", &u, &v);
      |                    ~~~~~^~~~~~~~~~~~~~~~
answer.code:240:21: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  240 |         int Q; scanf("%d", &Q);
      |                ~~~~~^~~~~~~~~~
answer.code:242:30: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  242 |                 char x; scanf(" %c", &x);
      |                         ~~~~~^~~~~~~~~~~
answer.code:243:32: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  243 |                 int u, v; scanf("%d%d", &u, &v);
      |                           ~~~~~^~~~~~~~~~~~~~~~